WHEEL GP-FINAL DRIVE & BRAKE 8V6389 - Caterpillar

Introduction
For Specifications with illustrations, make reference to Specifications For 3176B Marine Engine, SENR6507. If the Specifications in SENR6507 are not the same as in the Systems Operation, Testing and Adjusting, look at the printing date on the back cover of each book. Use the Specifications given in the book with the latest date.Model Views
Right Side View
Left Side View
Top View
Front View
Rear ViewEngine Design
Cylinder And Valve LocationBore ... 125.025 0.025 mm (4.9220 .0010 in)Stroke ... 140 mm (5.5 in)Displacement ... 10.3 liter (629 cu in)Cylinder Arrangement ... in-lineValves per Cylinder ... 4Valve Lash Setting Intake ... 0.38 mm (.015 in)Exhaust ... 0.76 mm (.030 in)Compression Ratio ... 16 to 1, 16.25 to 1Type of Combustion ... Direct InjectionFiring Order: ... 1,5,3,6,2,4Direction of Crankshaft Rotation (when seen from flywheel end) ... counterclockwise Front end of engine is opposite the flywheel end. Left side and right side of engine are as seen from flywheel end. No. 1 cylinder is the front cylinder.General Information
The engine is an electronically controlled mechanically actuated unit injector diesel engine. The engine is an inline 6 cylinder arrangement with a bore of 125.025 mm (4.9220 in) and a stroke of 140 mm (5.5 in) giving a total displacement of 10.3 liter (629 cu in). The engine as configured is for air to air aftercooling. It is a low profile arrangement with the exhaust and inlet manifolds on the right hand side.The electronic unit injector system eliminates many of the mechanical components of a "pump-in-line" system. It also provides increased control of timing and fuel/air ratio control. Timing advance is achieved by precise control of injector timing. Engine rpm is controlled by adjusting the injection duration. A special pulse wheel provides information to the electronic control module for detection of cylinder position and engine rpm.The engine has built-in diagnostics to insure that all components are operating properly. In the event of a system component failure, the operator will be alerted to the condition via the marine warning lights. A Caterpillar service tool can be used to read the numerical code of the faulty component or condition, or the lamp flash switch (fuse panel mounted toggle switch) can be used to "flash" the code on the dash mounted "check engine" light. Intermittent faults are "logged" and stored in memory.Three Cylinder Cut-out
Three cylinder cut-out may occur when the engine is operated above approximately 2350 rpm in a no load conditions. When these conditions exist, the 3176B Engine does not inject fuel into cylinders 4, 5 and 6, in order to obtain more precise fuel metering, reduce engine vibration and extend engine life. The accompanying change in the feel and sound of the engine should not be misdiagnosed as an engine problem. When more power is needed, all six cylinders are fueled and full power is delivered.Starting The Engine
The 3176B ECM will automatically provide the correct amount of fuel to start the engine. Do Not Hold The Throttle Down